Crawler crane run deviations can derail projects and pose safety risks. Run deviation refers to the tendency of a crawler crane to deviate from its intended path while moving. Identifying the cause and implementing an effective solution can improve the performance and safety of the crane. This article takes an in-depth look at the causes of run deviations and how to solve them.

Causes of Crawler Crane Run Deviations

Hydraulic System Problems

The hydraulic system of a crawler crane is responsible for providing power for moving and lifting operations. Problems in this system can significantly affect the crane’s moving accuracy. Common hydraulic problems include:

Blockages: Obstructions in the hydraulic lines or filters can restrict fluid flow, causing irregular motion.

Faulty control valves: Stuck or faulty control valves can cause uneven power distribution and deviations.

Cylinders and Seals: Leaks or damage to hydraulic cylinders and seals can affect performance and cause deviations.

Undercarriage Misalignment

The chassis is critical to the stability and smooth operation of the crane. Misalignment can cause uneven track wear and run deviations. Key factors include:

Uneven track distances: Inconsistent distances between the inner edges of the tracks can cause the crane to deviate from its intended path.

Improper Alignment: Misaligned undercarriage components can lead to inconsistent movement and increased wear.

Wear and tear：Over time, components such as tracks, rollers, and sprockets can wear out, affecting the crane’s ability to move in a straight line. Normal wear and tear can lead to running deviations if not addressed promptly.

Ground Conditions

Operating on uneven or unstable ground can exacerbate running deviations. Crane stability and alignment can be compromised when working on an unsuitable surface.

Solutions to Fix Crawler Crane Running Deviations

Hydraulic System Maintenance

Check for Blockages: Regularly check hydraulic lines and filters for blockages and clear any debris to ensure smooth fluid flow.

Test Control Valves: Verify that control valves are functioning properly and replace any faulty control valves.

Check Cylinders and Seals: Check hydraulic cylinders and seals for leaks or damage and repair or replace as needed.

Schedule Regular Maintenance: Perform routine maintenance on the hydraulic system to prevent problems and maintain optimal performance.

Undercarriage Alignment

Level Ground Positioning: Always place the crane on a flat surface to obtain accurate alignment measurements.

Measure Track Distance: Check the distance between the inner edges of the tracks at multiple points along the length of the crane to determine the difference.

Ensure consistency: Confirm that the track distance is consistent across the length of the crane. Resolve any inconsistencies promptly.

Use calibration tools: Use tools such as laser calibration equipment or wire ropes to achieve precise calibration and make necessary adjustments.

Resolve wear issues

Choose high-quality crawler crane undercarriage parts: High-quality crawler crane undercarriage parts has excellent wear resistance, which can increase service life and delay running deviation. Contact VM for more information on high-quality crawler crane undercarriage parts.

Regular inspections: Regularly inspect the crawler, rollers and sprockets for signs of wear and replace parts as needed.

Timely repairs: Promptly address any signs of excessive wear or damage to prevent further problems and maintain performance.

Optimize ground conditions

Evaluate ground stability: Ensure that the crane operates on stable, level ground to reduce the risk of deviation.

Prepare the site: If necessary, prepare the site to create a suitable working surface to support the stability and calibration of the crane.

Conclusion

Maintaining optimal performance of crawler cranes requires regular inspections and timely intervention to resolve running deviation issues. By understanding the causes and implementing effective solutions, you can improve the efficiency, safety and service life of your crane. For persistent problems or specific technical issues, it is recommended to consult the crane manual or seek advice from a professional technician.